Movies:
* The Last of the Mohicans (1992): He played the role of "Hawkeye" (young).
* The Secret Garden (1993): He portrayed the character of "Dickon".
* The Shadow (1994): He appeared as "Young Lamont Cranston".
* The Cure (1995): He played the role of "Michael".
* Deep Impact (1998): He starred as "Leo".
* The Patriot (2000): He portrayed "Thomas Martin".
* The Wedding Planner (2001): He appeared as "Kevin".
* The Perfect Score (2004): He played the role of "Jason".
* The Hills Have Eyes (2006): He portrayed "Doug".
* The Killing of a Sacred Deer (2017): He played the role of "Martin".
Television:
* The Equalizer (1985-1989): He appeared as "Mike Sloan" in several episodes.
* Quantum Leap (1989-1993): He played the role of "Sam Beckett" in the episode "The Leap Home - Part I".
* Boy Meets World (1993-2000): He played the recurring role of "Jack Hunter".
* NYPD Blue (1993-2005): He appeared in the episode "The Big Goodbye".
* CSI: Miami (2002-2012): He played the role of "Alexx" in the episode "The Best Laid Plans".
* Law & Order: Special Victims Unit (1999-Present): He appeared in the episode "Babes".
* Without a Trace (2002-2009): He played the role of "Peter" in the episode "The Witness".
* Cold Case (2003-2010): He played the role of "Bobby" in the episode "The Good Soldier".
* The Mentalist (2008-2015): He played the role of "Carl" in the episode "Red John's Friends".
* Castle (2009-2016): He played the role of "Derek" in the episode "The Last Seduction".
* Hawaii Five-0 (2010-2020): He played the role of "Kevin" in the episode "Pa'a".
* Criminal Minds (2005-2020): He played the role of "James" in the episode "The Gathering".
This is not an exhaustive list, but it highlights some of Adam McGurk's most notable roles in movies and television. He continues to work consistently in the industry, appearing in various projects over the years.